A symptom is something the patient senses and describes, while a sign is something other people, such as the doctor notice. For example, drowsiness may be a symptom while dilated pupils may be a sign. The symptoms overall of motion sickness include nausea, vomiting, and dizziness (vertigo). Other common signs are sweating and a general feeling of discomfort and not feeling well (malaise). Mild symptoms are categorized as headache, mild unease and yawning.
Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin.Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma.arbon dioxide transport in the tissue is summarized in Figure 1. It combines with water to form carbonic acid. This reaction is very slow in plasma but fast within the red blood cell owing to the presence of the enzyme carbonic anhydrase.
Advertisements: I. Transport of Oxygen: The exchange of oxygen and carbon dioxide takes place in between the lungs and blood. The greater part of oxygen diffuses into the blood and at the same time, carbon dioxide diffuses out. Here the question is where the oxygen would go. The most part oxygen (about 97%) is now carried by the erythrocytes or R. B. Cs.